What is the right hand rule in physics?

The right hand rule in physics is a widely used mnemonic technique that helps determine the direction of a vector resulting from a cross product of two other vectors. The rule states that if you curl the fingers of your right hand in the direction of the first vector and then point your thumb in the direction of the second vector, the direction in which your thumb is pointing will indicate the direction of the resultant vector.

This rule is commonly used in electromagnetism to determine the direction of the magnetic field created by a current-carrying wire, as well as in mechanics to determine the direction of the angular velocity of a rotating object. It is also used in fluid dynamics, robotics, and many other areas of physics.

The right hand rule is a useful tool for quickly determining the direction of a vector in three-dimensional space and is a fundamental concept in many branches of physics and engineering.